fix osx build

.travis.yml

@@ -22,18 +22,8 @@ addons:
 
 install:
   - if [ "$TRAVIS_OS_NAME" = 'osx' ]; then
-      brew update && brew install openssl socat;
-      brew info openssl;
-      ln -s /usr/local/opt/openssl/lib/libcrypto.1.0.0.dylib /usr/local/lib/;
-      ln -s /usr/local/opt/openssl/lib/libssl.1.0.0.dylib /usr/local/lib/;
-      ln -s /usr/local/Cellar/openssl/1.0.2j/bin/openssl /usr/local/openssl;
-      _old_path="$PATH";
-      echo "PATH=$PATH";
-      export PATH="";
-      export ACME_OPENSSL_BIN="/usr/local/openssl";
-      openssl version 2>&1 || true;
-      $ACME_OPENSSL_BIN version 2>&1 || true;
-      export PATH="$_old_path";
+      brew update && brew install socat;
+      export PATH="/usr/local/opt/openssl@1.1/bin:$PATH" ;
     fi
 
 script: